Directions: In the following questions, a statement of assertion (A) ...
Mendel chose garden pea as plant material for his experiment because garden pea plants were easily available/they grow in one season/fertilization was easy.
View all questions of this test
Directions: In the following questions, a statement of assertion (A) ...
Assertion: Mendel chose a number of varieties of garden pea as plant material for his experiments.
Reason: Garden pea has well-defined characters and was bisexual.
Explanation:
Mendel, the father of genetics, conducted his experiments on the garden pea (Pisum sativum) for several reasons. The given assertion and reason are both true, and the reason correctly explains the assertion. Let's understand why Mendel chose the garden pea for his experiments:
Garden Pea's Well-Defined Characters:
The garden pea possesses several easily distinguishable and well-defined characters. These characters include flower color (purple or white), seed color (yellow or green), seed shape (round or wrinkled), pod color (yellow or green), pod shape (inflated or constricted), and flower position (axial or terminal). These characters are controlled by specific genes, which Mendel could easily observe and manipulate during his experiments. The clear distinction between the different traits allowed Mendel to study the inheritance patterns more effectively.
Bisexual Nature of Garden Pea:
The garden pea is a bisexual plant, meaning it possesses both male and female reproductive organs within the same flower. This characteristic allowed Mendel to perform controlled crosses by manually transferring pollen from the male organ (stamen) to the female organ (pistil) to achieve controlled fertilization. By controlling the pollination process, Mendel could ensure that specific traits were being passed on and study the patterns of inheritance more accurately.
Advantages of Using Garden Pea:
1. Easy to grow and cultivate: Garden pea plants are relatively easy to grow and cultivate, making them suitable for experimental purposes.
2. Short generation time: The garden pea has a relatively short life cycle, allowing Mendel to conduct multiple generations of crosses in a shorter period.
3. Large number of offspring: Each garden pea plant produces a large number of seeds, ensuring a sufficient sample size for statistical analysis.
4. Self-fertilization and cross-fertilization: The garden pea can undergo both self-fertilization (plants can reproduce with themselves) and cross-fertilization (plants can reproduce with other plants), providing Mendel with flexibility in his experimental design.
Conclusion:
Mendel chose the garden pea as his plant material for experiments because of its well-defined characters, which facilitated the study of inheritance patterns. Additionally, the garden pea's bisexual nature allowed for controlled crosses and ensured accurate observation of traits.
To make sure you are not studying endlessly, EduRev has designed Class 10 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 10.